mi -jv. i 



all\, as far as regard 



>ile to tli 



from 



the 0] 



lial ridge expun <U at di :le of the eye. and becomes di\ 



. so that both :u aent. 



MM LET, 

 1. i .1 \\.ilN of the jrii: >rain vesicle are evaginated 



to t'unii tin- optic \ 



_ lii' lain united by means of a stalk, the 



futmv optic nerve, with thai part of tin* primary fore 

 which become-, tli<- bet ween brain. 



3. Tlie optic vcsid" ! into the 



imagination of its lateral ami lo\\er walls by laments < !' 



MS hody. 



I. At the place where the lateral wall of th 

 inters the outer ^erni-layer, the latter becom* 



<lrpiv>-i (1 int a pit . and finally C <! off as a 



tor wall "f tli" 1.-. into 



. those of the anterior wall become the lens -epitlu-1: 

 '{'he fundament of the lens is enveloped a' 



principal growth lya vasculai-cap>;'.li- (tu 

 dfl ei it in -ly disappc'a 



7. The membrana cap-ulo pupill, the 

 tunica va>culo>a lent is and lies iK-hind the pupil. 



8. The development of the \ ly causes the ch< 



i! e. 



9. The optic cup has double walls ; it consi i an 

 i- epithelium, which are continu-'ii^ \\ith each other at the open- 

 of the cup, which embraces the lens, and at the 



10. Me-enrhymatir cells from th.- grow in between 

 lens and *.pplied e; > form the cornea 

 and DxsCBMET^fi momhram-. tiie la -.g separated from the 



tunica \asculosa lentis by a li->ure. tli- 

 eye. 



II. The optic cup i> diti'eiei.t ; liin 

 the territory of which its inner layer becomes tl: 



-:itute> the retina, and an anterior portion, which begins at the ora 



